A very convenient method was developed to synthesize five dispersed anthraquinone dyestuffs using the readily available starting material 1,4-diaminoanthroquinone. This dye was prepared for coloration on nylon fabrics with supercritical carbon dioxide (ScCO). All the synthesized dyes were characterized by H NMR, C NMR, and HRMS techniques. The UV-Vis absorbance measurements for all the dyes were carried out, and the results indicated that the absorption peak wavelength of the dyes was approximately 570–641 nm in the blue region. Further, these dispersed dyes were dyed on nylon fabrics with supercritical CO. After dyed fabrics were tested, the color strength of K/S value and color fastness were tested using like washing, crocking, and sunlight. Additionally, it determines the sweat fastness of dyed nylon fabrics under acidic and basic conditions. The dyes are readily involved in the nucleophilic addition of amino (-NH, nylon) functional groups to nylon fabrics in an alkaline medium. Therefore, our results showed that these dyes are commercially the most satisfactory, environmentally efficient dyes and practically exhibit sufficient color uniformity.

中文翻译：

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可持续蓝色染料的合成和表征：用超临界二氧化碳增强尼龙织物的扩散，实现环保染色方法


开发了一种非常方便的方法，使用易于获得的起始材料 1,4-二氨基蒽醌来合成五种分散的蒽醌染料。该染料是为使用超临界二氧化碳 (ScCO) 在尼龙织物上着色而制备的。所有合成的染料均通过 H NMR、C NMR 和 HRMS 技术进行了表征。对所有染料进行了紫外-可见光吸光度测量，结果表明染料的吸收峰波长约为570-641nm，位于蓝色区域。进一步，将这些分散染料用超临界CO对尼龙织物进行染色。染色后的织物进行测试后，使用水洗、摩擦、日光等测试其K/S值的色力和色牢度。此外，它还测定染色尼龙织物在酸性和碱性条件下的耐汗牢度。该染料很容易在碱性介质中将氨基（-NH，尼龙）官能团亲核加成到尼龙织物上。因此，我们的结果表明，这些染料是商业上最令人满意的环保染料，并且实际上表现出足够的颜色均匀性。